Gasoline engine



FIG. 1 is a front elevation view of a gasoline engine showing my new design;

FIG. 2 is a rear elevation view thereof;

FIG. 3 is a left side elevation view thereof;

FIG. 4 is a right side elevation view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a perspective view showing views of the front side, right side and bottom side thereof;

FIG. 8 is a perspective view showing views of the rear side, top side and right side thereof;

FIG. 9 is a perspective view showing views of the front side, right side and bottom side thereof;

FIG. 10 is a perspective view showing views of the rear side, right side and bottom side thereof;

FIG. 11 is a perspective view showing views of front side, left side and top side thereof; and,

FIG. 12 is a perspective view showing views of rear side, right side and bottom side thereof.

The front, rear, left, right, top, and bottom sides are oriented by the FIG. 1. 

CLAIM The ornamental design for a gasoline engine, as shown and described. 